./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix033_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix033_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e61e21f5d7e6e4d5f8f06eb5177c457338190644d81fa4e1ee7a1000b79020da --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 12:13:55,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:13:55,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:13:55,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:13:55,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:13:55,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:13:55,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:13:55,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:13:55,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:13:55,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:13:55,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:13:55,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:13:55,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:13:55,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:13:55,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:13:55,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:13:55,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:13:55,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:13:55,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:13:55,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:13:55,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:13:55,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:13:55,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:13:55,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:13:55,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:13:55,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:13:55,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:13:55,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:13:55,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:13:55,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:13:55,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:13:55,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:13:55,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:13:55,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:13:55,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:13:55,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:13:55,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:13:55,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:13:55,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:13:55,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:13:55,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:13:55,653 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 12:13:55,667 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:13:55,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:13:55,667 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:13:55,667 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:13:55,668 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:13:55,668 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:13:55,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:13:55,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:13:55,669 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:13:55,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:13:55,669 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:13:55,669 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:13:55,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:13:55,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:13:55,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:13:55,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:13:55,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:13:55,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:13:55,669 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:13:55,670 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:13:55,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:13:55,670 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:13:55,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:13:55,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:13:55,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:13:55,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:13:55,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:13:55,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:13:55,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:13:55,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:13:55,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:13:55,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:13:55,671 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:13:55,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:13:55,671 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:13:55,671 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:13:55,671 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:13:55,671 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e61e21f5d7e6e4d5f8f06eb5177c457338190644d81fa4e1ee7a1000b79020da [2022-12-13 12:13:55,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:13:55,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:13:55,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:13:55,885 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:13:55,885 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:13:55,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix033_tso.oepc.i [2022-12-13 12:13:58,515 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:13:58,711 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:13:58,712 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/sv-benchmarks/c/pthread-wmm/mix033_tso.oepc.i [2022-12-13 12:13:58,720 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/bin/uautomizer-uyxdKDjOR8/data/ac4228706/270735a7c77744839e014bd611a87222/FLAGcb36df8d3 [2022-12-13 12:13:58,731 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/bin/uautomizer-uyxdKDjOR8/data/ac4228706/270735a7c77744839e014bd611a87222 [2022-12-13 12:13:58,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:13:58,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:13:58,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:13:58,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:13:58,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:13:58,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:13:58" (1/1) ... [2022-12-13 12:13:58,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3babce8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:13:58, skipping insertion in model container [2022-12-13 12:13:58,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:13:58" (1/1) ... [2022-12-13 12:13:58,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:13:58,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:13:58,888 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/sv-benchmarks/c/pthread-wmm/mix033_tso.oepc.i[949,962] [2022-12-13 12:13:58,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:58,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:58,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:58,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:58,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:58,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:58,983 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:58,985 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:58,986 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:58,987 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:58,987 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:58,987 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:58,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:58,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:58,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:58,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:58,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:58,990 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:58,990 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:58,991 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:58,991 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:58,991 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:58,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:58,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:58,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:58,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:58,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:58,993 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:58,993 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:58,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:58,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:58,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:13:59,019 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:13:59,028 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/sv-benchmarks/c/pthread-wmm/mix033_tso.oepc.i[949,962] [2022-12-13 12:13:59,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,049 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,050 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,050 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,050 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,056 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,056 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,056 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,058 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,058 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:13:59,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:13:59,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:13:59,083 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:13:59,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:13:59 WrapperNode [2022-12-13 12:13:59,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:13:59,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:13:59,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:13:59,084 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:13:59,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:13:59" (1/1) ... [2022-12-13 12:13:59,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:13:59" (1/1) ... [2022-12-13 12:13:59,117 INFO L138 Inliner]: procedures = 176, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 155 [2022-12-13 12:13:59,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:13:59,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:13:59,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:13:59,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:13:59,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:13:59" (1/1) ... [2022-12-13 12:13:59,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:13:59" (1/1) ... [2022-12-13 12:13:59,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:13:59" (1/1) ... [2022-12-13 12:13:59,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:13:59" (1/1) ... [2022-12-13 12:13:59,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:13:59" (1/1) ... [2022-12-13 12:13:59,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:13:59" (1/1) ... [2022-12-13 12:13:59,135 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:13:59" (1/1) ... [2022-12-13 12:13:59,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:13:59" (1/1) ... [2022-12-13 12:13:59,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:13:59,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:13:59,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:13:59,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:13:59,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:13:59" (1/1) ... [2022-12-13 12:13:59,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:13:59,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:13:59,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:13:59,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:13:59,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:13:59,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 12:13:59,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:13:59,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:13:59,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:13:59,200 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 12:13:59,200 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 12:13:59,200 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 12:13:59,200 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 12:13:59,200 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 12:13:59,200 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 12:13:59,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:13:59,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 12:13:59,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:13:59,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:13:59,202 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 12:13:59,299 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:13:59,301 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:13:59,545 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:13:59,662 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:13:59,662 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:13:59,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:13:59 BoogieIcfgContainer [2022-12-13 12:13:59,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:13:59,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:13:59,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:13:59,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:13:59,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:13:58" (1/3) ... [2022-12-13 12:13:59,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2408351f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:13:59, skipping insertion in model container [2022-12-13 12:13:59,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:13:59" (2/3) ... [2022-12-13 12:13:59,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2408351f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:13:59, skipping insertion in model container [2022-12-13 12:13:59,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:13:59" (3/3) ... [2022-12-13 12:13:59,673 INFO L112 eAbstractionObserver]: Analyzing ICFG mix033_tso.oepc.i [2022-12-13 12:13:59,682 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 12:13:59,692 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:13:59,692 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 12:13:59,692 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:13:59,738 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 12:13:59,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 127 transitions, 269 flow [2022-12-13 12:13:59,823 INFO L130 PetriNetUnfolder]: 2/124 cut-off events. [2022-12-13 12:13:59,823 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:13:59,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 124 events. 2/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 84 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2022-12-13 12:13:59,829 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 127 transitions, 269 flow [2022-12-13 12:13:59,834 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 124 transitions, 257 flow [2022-12-13 12:13:59,837 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:13:59,844 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 124 transitions, 257 flow [2022-12-13 12:13:59,847 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 124 transitions, 257 flow [2022-12-13 12:13:59,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 124 transitions, 257 flow [2022-12-13 12:13:59,877 INFO L130 PetriNetUnfolder]: 2/124 cut-off events. [2022-12-13 12:13:59,877 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:13:59,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 124 events. 2/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 84 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2022-12-13 12:13:59,880 INFO L119 LiptonReduction]: Number of co-enabled transitions 3028 [2022-12-13 12:14:03,253 INFO L134 LiptonReduction]: Checked pairs total: 9652 [2022-12-13 12:14:03,254 INFO L136 LiptonReduction]: Total number of compositions: 101 [2022-12-13 12:14:03,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:14:03,268 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2b489edf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:14:03,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-12-13 12:14:03,271 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-13 12:14:03,271 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:14:03,271 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:14:03,271 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:14:03,272 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:14:03,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:14:03,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1183811174, now seen corresponding path program 1 times [2022-12-13 12:14:03,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:14:03,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716906795] [2022-12-13 12:14:03,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:14:03,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:14:03,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:14:03,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:14:03,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:14:03,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716906795] [2022-12-13 12:14:03,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716906795] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:14:03,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:14:03,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:14:03,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322830439] [2022-12-13 12:14:03,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:14:03,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:14:03,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:14:03,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:14:03,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:14:03,499 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 228 [2022-12-13 12:14:03,502 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:03,502 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:14:03,502 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 228 [2022-12-13 12:14:03,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:14:03,773 INFO L130 PetriNetUnfolder]: 1115/1782 cut-off events. [2022-12-13 12:14:03,773 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-12-13 12:14:03,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3569 conditions, 1782 events. 1115/1782 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 8833 event pairs, 379 based on Foata normal form. 0/1448 useless extension candidates. Maximal degree in co-relation 3558. Up to 1247 conditions per place. [2022-12-13 12:14:03,784 INFO L137 encePairwiseOnDemand]: 218/228 looper letters, 38 selfloop transitions, 4 changer transitions 0/46 dead transitions. [2022-12-13 12:14:03,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 191 flow [2022-12-13 12:14:03,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:14:03,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:14:03,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 363 transitions. [2022-12-13 12:14:03,794 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5307017543859649 [2022-12-13 12:14:03,795 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 363 transitions. [2022-12-13 12:14:03,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 363 transitions. [2022-12-13 12:14:03,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:14:03,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 363 transitions. [2022-12-13 12:14:03,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:03,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:03,804 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 228.0) internal successors, (912), 4 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:03,805 INFO L175 Difference]: Start difference. First operand has 39 places, 29 transitions, 67 flow. Second operand 3 states and 363 transitions. [2022-12-13 12:14:03,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 191 flow [2022-12-13 12:14:03,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 46 transitions, 186 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 12:14:03,809 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 100 flow [2022-12-13 12:14:03,810 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2022-12-13 12:14:03,812 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 0 predicate places. [2022-12-13 12:14:03,812 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 100 flow [2022-12-13 12:14:03,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:03,813 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:14:03,813 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:14:03,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:14:03,813 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:14:03,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:14:03,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1520565548, now seen corresponding path program 1 times [2022-12-13 12:14:03,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:14:03,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76948227] [2022-12-13 12:14:03,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:14:03,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:14:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:14:03,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:14:03,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:14:03,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76948227] [2022-12-13 12:14:03,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76948227] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:14:03,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:14:03,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:14:03,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966463517] [2022-12-13 12:14:03,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:14:03,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:14:03,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:14:03,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:14:03,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:14:03,931 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 228 [2022-12-13 12:14:03,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:03,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:14:03,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 228 [2022-12-13 12:14:03,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:14:04,170 INFO L130 PetriNetUnfolder]: 899/1434 cut-off events. [2022-12-13 12:14:04,170 INFO L131 PetriNetUnfolder]: For 114/114 co-relation queries the response was YES. [2022-12-13 12:14:04,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3405 conditions, 1434 events. 899/1434 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 6829 event pairs, 331 based on Foata normal form. 0/1270 useless extension candidates. Maximal degree in co-relation 3394. Up to 898 conditions per place. [2022-12-13 12:14:04,176 INFO L137 encePairwiseOnDemand]: 221/228 looper letters, 35 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2022-12-13 12:14:04,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 43 transitions, 198 flow [2022-12-13 12:14:04,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:14:04,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 12:14:04,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 462 transitions. [2022-12-13 12:14:04,178 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.506578947368421 [2022-12-13 12:14:04,178 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 462 transitions. [2022-12-13 12:14:04,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 462 transitions. [2022-12-13 12:14:04,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:14:04,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 462 transitions. [2022-12-13 12:14:04,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:04,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 228.0) internal successors, (1140), 5 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:04,182 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 228.0) internal successors, (1140), 5 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:04,182 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 100 flow. Second operand 4 states and 462 transitions. [2022-12-13 12:14:04,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 43 transitions, 198 flow [2022-12-13 12:14:04,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 43 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:14:04,183 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 92 flow [2022-12-13 12:14:04,184 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=92, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2022-12-13 12:14:04,184 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, -1 predicate places. [2022-12-13 12:14:04,184 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 92 flow [2022-12-13 12:14:04,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:04,185 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:14:04,185 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:14:04,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:14:04,185 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:14:04,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:14:04,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1520565547, now seen corresponding path program 1 times [2022-12-13 12:14:04,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:14:04,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784088030] [2022-12-13 12:14:04,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:14:04,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:14:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:14:04,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:14:04,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:14:04,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784088030] [2022-12-13 12:14:04,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784088030] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:14:04,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:14:04,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:14:04,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784518322] [2022-12-13 12:14:04,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:14:04,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:14:04,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:14:04,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:14:04,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:14:04,259 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 228 [2022-12-13 12:14:04,260 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:04,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:14:04,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 228 [2022-12-13 12:14:04,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:14:04,484 INFO L130 PetriNetUnfolder]: 734/1173 cut-off events. [2022-12-13 12:14:04,485 INFO L131 PetriNetUnfolder]: For 376/376 co-relation queries the response was YES. [2022-12-13 12:14:04,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2748 conditions, 1173 events. 734/1173 cut-off events. For 376/376 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 5461 event pairs, 303 based on Foata normal form. 0/1121 useless extension candidates. Maximal degree in co-relation 2736. Up to 478 conditions per place. [2022-12-13 12:14:04,489 INFO L137 encePairwiseOnDemand]: 221/228 looper letters, 44 selfloop transitions, 7 changer transitions 3/58 dead transitions. [2022-12-13 12:14:04,489 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 58 transitions, 270 flow [2022-12-13 12:14:04,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:14:04,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 12:14:04,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 477 transitions. [2022-12-13 12:14:04,491 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5230263157894737 [2022-12-13 12:14:04,491 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 477 transitions. [2022-12-13 12:14:04,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 477 transitions. [2022-12-13 12:14:04,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:14:04,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 477 transitions. [2022-12-13 12:14:04,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 119.25) internal successors, (477), 4 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:04,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 228.0) internal successors, (1140), 5 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:04,500 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 228.0) internal successors, (1140), 5 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:04,500 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 92 flow. Second operand 4 states and 477 transitions. [2022-12-13 12:14:04,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 58 transitions, 270 flow [2022-12-13 12:14:04,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 58 transitions, 265 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:14:04,502 INFO L231 Difference]: Finished difference. Result has 40 places, 29 transitions, 113 flow [2022-12-13 12:14:04,502 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=113, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2022-12-13 12:14:04,502 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2022-12-13 12:14:04,502 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 113 flow [2022-12-13 12:14:04,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:04,503 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:14:04,503 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:14:04,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:14:04,503 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-13 12:14:04,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:14:04,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1225337052, now seen corresponding path program 1 times [2022-12-13 12:14:04,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:14:04,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826269442] [2022-12-13 12:14:04,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:14:04,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:14:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:14:04,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:14:04,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:14:04,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826269442] [2022-12-13 12:14:04,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826269442] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:14:04,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:14:04,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:14:04,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064878483] [2022-12-13 12:14:04,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:14:04,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:14:04,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:14:04,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:14:04,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:14:04,601 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 228 [2022-12-13 12:14:04,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 113 flow. Second operand has 5 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:04,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:14:04,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 228 [2022-12-13 12:14:04,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:14:04,815 INFO L130 PetriNetUnfolder]: 714/1137 cut-off events. [2022-12-13 12:14:04,816 INFO L131 PetriNetUnfolder]: For 786/786 co-relation queries the response was YES. [2022-12-13 12:14:04,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2969 conditions, 1137 events. 714/1137 cut-off events. For 786/786 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 5376 event pairs, 303 based on Foata normal form. 12/1109 useless extension candidates. Maximal degree in co-relation 2956. Up to 478 conditions per place. [2022-12-13 12:14:04,818 INFO L137 encePairwiseOnDemand]: 221/228 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2022-12-13 12:14:04,818 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 52 transitions, 249 flow [2022-12-13 12:14:04,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:14:04,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 12:14:04,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 576 transitions. [2022-12-13 12:14:04,820 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5052631578947369 [2022-12-13 12:14:04,820 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 576 transitions. [2022-12-13 12:14:04,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 576 transitions. [2022-12-13 12:14:04,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:14:04,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 576 transitions. [2022-12-13 12:14:04,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:04,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 228.0) internal successors, (1368), 6 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:04,823 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 228.0) internal successors, (1368), 6 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:04,823 INFO L175 Difference]: Start difference. First operand has 40 places, 29 transitions, 113 flow. Second operand 5 states and 576 transitions. [2022-12-13 12:14:04,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 52 transitions, 249 flow [2022-12-13 12:14:04,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 52 transitions, 225 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-12-13 12:14:04,826 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2022-12-13 12:14:04,826 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=228, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2022-12-13 12:14:04,827 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, -2 predicate places. [2022-12-13 12:14:04,827 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2022-12-13 12:14:04,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:14:04,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-12-13 12:14:04,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-12-13 12:14:04,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-12-13 12:14:04,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-12-13 12:14:04,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-12-13 12:14:04,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-12-13 12:14:04,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-12-13 12:14:04,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-12-13 12:14:04,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-12-13 12:14:04,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-12-13 12:14:04,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-12-13 12:14:04,831 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-12-13 12:14:04,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-12-13 12:14:04,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-12-13 12:14:04,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-12-13 12:14:04,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:14:04,832 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 12:14:04,837 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 12:14:04,838 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:14:04,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:14:04 BasicIcfg [2022-12-13 12:14:04,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:14:04,841 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:14:04,841 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:14:04,842 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:14:04,842 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:13:59" (3/4) ... [2022-12-13 12:14:04,844 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 12:14:04,848 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 12:14:04,848 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 12:14:04,848 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-13 12:14:04,853 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2022-12-13 12:14:04,853 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-12-13 12:14:04,853 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 12:14:04,854 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 12:14:04,887 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:14:04,887 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:14:04,887 INFO L158 Benchmark]: Toolchain (without parser) took 6153.76ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 108.4MB in the beginning and 100.3MB in the end (delta: 8.1MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2022-12-13 12:14:04,888 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 144.7MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:14:04,888 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.26ms. Allocated memory is still 144.7MB. Free memory was 108.4MB in the beginning and 81.1MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 12:14:04,888 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.42ms. Allocated memory is still 144.7MB. Free memory was 81.1MB in the beginning and 78.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:14:04,889 INFO L158 Benchmark]: Boogie Preprocessor took 20.40ms. Allocated memory is still 144.7MB. Free memory was 78.1MB in the beginning and 76.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:14:04,889 INFO L158 Benchmark]: RCFGBuilder took 525.95ms. Allocated memory is still 144.7MB. Free memory was 76.5MB in the beginning and 99.7MB in the end (delta: -23.2MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2022-12-13 12:14:04,889 INFO L158 Benchmark]: TraceAbstraction took 5173.96ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 99.0MB in the beginning and 103.5MB in the end (delta: -4.5MB). Peak memory consumption was 89.2MB. Max. memory is 16.1GB. [2022-12-13 12:14:04,890 INFO L158 Benchmark]: Witness Printer took 45.47ms. Allocated memory is still 174.1MB. Free memory was 103.5MB in the beginning and 100.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 12:14:04,892 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 144.7MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.26ms. Allocated memory is still 144.7MB. Free memory was 108.4MB in the beginning and 81.1MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.42ms. Allocated memory is still 144.7MB. Free memory was 81.1MB in the beginning and 78.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.40ms. Allocated memory is still 144.7MB. Free memory was 78.1MB in the beginning and 76.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 525.95ms. Allocated memory is still 144.7MB. Free memory was 76.5MB in the beginning and 99.7MB in the end (delta: -23.2MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5173.96ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 99.0MB in the beginning and 103.5MB in the end (delta: -4.5MB). Peak memory consumption was 89.2MB. Max. memory is 16.1GB. * Witness Printer took 45.47ms. Allocated memory is still 174.1MB. Free memory was 103.5MB in the beginning and 100.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 132 PlacesBefore, 39 PlacesAfterwards, 124 TransitionsBefore, 29 TransitionsAfterwards, 3028 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 101 TotalNumberOfCompositions, 9652 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3652, independent: 3361, independent conditional: 0, independent unconditional: 3361, dependent: 291, dependent conditional: 0, dependent unconditional: 291, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1608, independent: 1557, independent conditional: 0, independent unconditional: 1557, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3652, independent: 1804, independent conditional: 0, independent unconditional: 1804, dependent: 240, dependent conditional: 0, dependent unconditional: 240, unknown: 1608, unknown conditional: 0, unknown unconditional: 1608] , Statistics on independence cache: Total cache size (in pairs): 162, Positive cache size: 138, Positive conditional cache size: 0, Positive unconditional cache size: 138, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 825]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 825]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 163 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 148 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 127 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 250 IncrementalHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 4 mSDtfsCounter, 250 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 12:14:04,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1a25c4-c23a-4a66-9708-876294a7c8a6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE